The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 04, 2010
Filed:
Sep. 25, 2006
Masao Yaji, Tokyo, JP;
Masao Yaji, Tokyo, JP;
OKI Data Corporation, Tokyo, JP;
Abstract
A pseudo random number generating circuit forms uniform distribution random number noises. An insertion noise data forming unit receives the uniform distribution random number noises, center-distributes them around 0 as a center, further reads out output correction values of every recording device from an LED characteristics variation data memory, center-distributes them on the basis of the output correction values, and outputs them. A noise inserting circuit receives an output of the insertion noise data forming unit and adds it to input image data. The occurrence a stripe-shaped concentration variation on an output image is prevented, so that a good output image is obtained.
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